Effects of contour propagation and background corrections in different MRI flow software packages

Boye, Dirk; Springer, Oliver; Wassmer, Felix; Scheidegger, Stephan; Remonda, Luca; Berberat, Jatta

doi:10.21256/zhaw-1763

Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-1763

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Effects of contour propagation and background corrections in different MRI flow software packages
Authors:	Boye, Dirk Springer, Oliver Wassmer, Felix Scheidegger, Stephan Remonda, Luca Berberat, Jatta
DOI:	10.21256/zhaw-1763 10.1177/2058460115589124
Published in:	Acta Radiologica Open
Volume(Issue):	4
Issue:	6
Issue Date:	2015
Publisher / Ed. Institution:	Sage
ISSN:	2058-4601
Language:	English
Subjects:	Phase image; MR based flow measurements
Subject (DDC):	616: Internal medicine and diseases
Abstract:	Background: Velocity-encoded magnetic resonance imaging (VENC-MRI) is a commonly used technique in cardiac examinations. This technique utilizes the phase shift properties of protons moving along a magnetic field gradient. VENC-MRI offers a unique way of measuring the severity of valve regurgitation by directly quantifying the regurgitation flow volume. Purpose: To compare flow analysis results of different software programs and to assess the effect of background correction in sample patient cases. Material and Methods: A phantom was built out of Polymethyl methacrylate (PMMA) which provides tubes of different diameters. These tubes can be connected to an external water circuit to generate a water flow inside the tubes. Expected absolute flow quantities inside the tubes were determined from preset tube- and flow-parameters. Different flow conditions were measured with a VENC-MRI sequence and the images evaluated using different software packages. In a second step six randomly selected patients showing different degrees of aortic insufficiency were evaluated in clinical terms. Results: The contour propagation algorithms used in the software packages performed differently even on static phantom geometry. In terms of clinical evaluation the software packages performed similarly. Enabling background correction or leaving out manual correction of propagated contours changed results for severity of aortic insufficiency. Conclusion: Turning on background correction and manual correction of propagated contours in MRI flow volume measurements is strongly recommended.
URI:	https://digitalcollection.zhaw.ch/handle/11475/3445
Fulltext version:	Published version
License (according to publishing contract):	CC BY-NC 3.0: Attribution - Non commercial 3.0 Unported
Departement:	School of Engineering
Organisational Unit:	Institute of Applied Mathematics and Physics (IAMP)
Appears in collections:	Publikationen School of Engineering

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Boye, D., Springer, O., Wassmer, F., Scheidegger, S., Remonda, L., & Berberat, J. (2015). Effects of contour propagation and background corrections in different MRI flow software packages. Acta Radiologica Open, 4(6). https://doi.org/10.21256/zhaw-1763

Boye, D. et al. (2015) ‘Effects of contour propagation and background corrections in different MRI flow software packages’, Acta Radiologica Open, 4(6). Available at: https://doi.org/10.21256/zhaw-1763.

D. Boye, O. Springer, F. Wassmer, S. Scheidegger, L. Remonda, and J. Berberat, “Effects of contour propagation and background corrections in different MRI flow software packages,” Acta Radiologica Open, vol. 4, no. 6, 2015, doi: 10.21256/zhaw-1763.

BOYE, Dirk, Oliver SPRINGER, Felix WASSMER, Stephan SCHEIDEGGER, Luca REMONDA und Jatta BERBERAT, 2015. Effects of contour propagation and background corrections in different MRI flow software packages. Acta Radiologica Open. 2015. Bd. 4, Nr. 6. DOI 10.21256/zhaw-1763

Boye, Dirk, Oliver Springer, Felix Wassmer, Stephan Scheidegger, Luca Remonda, and Jatta Berberat. 2015. “Effects of Contour Propagation and Background Corrections in Different MRI Flow Software Packages.” Acta Radiologica Open 4 (6). https://doi.org/10.21256/zhaw-1763.

Boye, Dirk, et al. “Effects of Contour Propagation and Background Corrections in Different MRI Flow Software Packages.” Acta Radiologica Open, vol. 4, no. 6, 2015, https://doi.org/10.21256/zhaw-1763.